cmuratori/refterm on Hacker News

…counts as real work. Casey Muratori addressed this years ago with the windows terminal drama, https://github.com/cmuratori/refterm

comment by nnmg · 2026-07-19 · in Claude Code uses Bun written in Rust now

…Terminal despite being largely unoptimized. [0] https://www.youtube.com/watch?v=hxM8QmyZXtg [1] https://github.com/cmuratori/refterm

comment by zonovar · 2025-11-12 · in Terminal Latency on Windows (2024)

…series about it: https://www.youtube.com/watch?v=hxM8QmyZXtg A way faster terminal emulator demo: https://github.com/cmuratori/refterm And a terminal rendering benchmark tool: https://github.com/cmuratori/termbench

comment by kaelwd · 2025-11-12 · in Drawing Text Isn't Simple: Benchmarking Console vs. Graphical Rendering

…fonts and character grids, you can probably render that with plain SDL You don't even need SDL https://github.com/cmuratori/refterm

comment by troupo · 2025-04-13 · in WebTUI – A CSS Library That Brings the Beauty of Terminal UIs to the Browser

…the windows terminal could be faster. https://twitter.com/cmuratori/status/1523024109831041024 https://github.com/cmuratori/refterm

comment by lylejantzi3rd · 2023-09-23 · in Linux terminal emulators have the potential of being much faster

…the poc [3] [1] https://news.ycombinator.com/item?id=28743687 (It takes a PhD to develop that) [2] https://github.com/cmuratori/refterm [3] https://www.youtube.com/watch?v=hxM8QmyZXtg , https://www.youtube.com/watch?v=pgoetgxecw8

comment by sllabres · 2023-03-13 · in WezTerm is a GPU-accelerated cross-platform terminal emulator written in Rust

> licensing it so that they couldn’t even look at it https://github.com/cmuratori/refterm/blob/main/LICENSE It’s just GPL 2.0, what are you talking about!? Are Microsoft employees vampires that will burn up instantly if they merely glance…

comment by jiggawatts · 2022-09-30 · in Why modern software is slow

…be comprehensive, since this is only meant to be a reference renderer, not a complete terminal." — https://github.com/cmuratori/refterm#feature-support

comment by brhsagain · 2022-05-11 · in When I tell the Windows Terminal team something is simple, I am "misguided"

…even without VT codes. Also, for context, [3] [1] https://news.ycombinator.com/item?id=31285723 [2] https://github.com/cmuratori/refterm [3] https://news.ycombinator.com/item?id=31285339

comment by dmitriid · 2022-05-06 · in When I tell the Windows Terminal team something is simple, I am "misguided"

…you can easily get something 100x faster than Windows Terminal. He even wrote refterm to prove it: https://github.com/cmuratori/refterm No one wants to be told that something they're working super hard on is actually trivial, and that all…

comment by brhsagain · 2022-05-06 · in When I tell the Windows Terminal team something is simple, I am "misguided"

…Casey did the implementation [1] to prove the point and also made explanatory videos [2] of it. [1] https://github.com/cmuratori/refterm [2] https://www.youtube.com/watch?v=hxM8QmyZXtg&t=1052s

comment by starburst · 2022-05-06 · in When I tell the Windows Terminal team something is simple, I am "misguided"

…glyphs itself would likely be much faster than refterm for many important metrics.[0] [0] - https://github.com/cmuratori/refterm [1] - Refterm Lecture Part 1 - Philosophies of Optimization - https://www.youtube.com/watch?v=pgoetgxecw8

comment by andai · 2022-05-06 · in When I tell the Windows Terminal team something is simple, I am "misguided"

…languages in Unicode, etc.) from scratch in about 3,000 lines of code just to prove their point: https://github.com/cmuratori/refterm

comment by HideousKojima · 2022-05-06 · in When I tell the Windows Terminal team something is simple, I am "misguided"

After that post they did implement a full reference implementation: https://github.com/cmuratori/refterm/commits/main And there is movement in getting changes into the terminal itself: https://github.com/microsoft/terminal/issues/10461

comment by FemmeAndroid · 2022-01-05 · in Burn My Windows

For a basic example of why you would want GPU acceleration, have a look at refterm: https://github.com/cmuratori/refterm Even processes that you wouldn't think would be impacted by a terminal can be hurt relaly bad by your terminal's…

comment by ohgodplsno · 2021-12-12 · in WezTerm – A GPU-accelerated cross-platform terminal emulator and multiplexer

What is this about? This refterm? https://github.com/cmuratori/refterm Or a cats-in-space anime? Or Handmade Hero?

comment by WalterGR · 2021-10-20 · in The architecture behind Refterm – Lecture Series [video]

It's here: https://github.com/cmuratori/refterm That issue was closed but the current open issue which acknowledges this is a real problem is here: https://github.com/microsoft/terminal/issues/10462 Here is a comment on the code directly…

comment by FemmeAndroid · 2021-10-04 · in It takes a PhD to develop that

I think you will like that: https://github.com/cmuratori/refterm/issues/17

comment by forgotpwd16 · 2021-10-04 · in It takes a PhD to develop that

…correctly (such as proper handling of Arabic etc.) than Windows Terminal. See feature support: https://github.com/cmuratori/refterm#feature-support Also see FAQ: https://github.com/cmuratori/refterm/blob/main/faq.md

comment by dmitriid · 2021-10-04 · in It takes a PhD to develop that

I was curious as well, I dug a bit and I found this: https://github.com/cmuratori/refterm I think he just went ahead and created a completely different terminal. Also, some background, the original raiser of the PR is Casey Muratori, of…

comment by RealityVoid · 2021-10-04 · in It takes a PhD to develop that

…Windows Terminal is complex, ClearType is complex and Unicode rendering is complex. That said… https://github.com/cmuratori/refterm does exist, does not support ClearType, but does claim to fully support Unicode. Unfortunately, Microsoft…

comment by lstamour · 2021-10-04 · in It takes a PhD to develop that

…being said, is anyone aware of a significant missing feature that would impact performance? [1]: https://github.com/cmuratori/refterm#feature-support

comment by thih9 · 2021-10-04 · in It takes a PhD to develop that

…2 vs Windows Terminal in action: https://www.youtube.com/watch?v=99dKzubvpKE Refterm 2 source: https://github.com/cmuratori/refterm One of the previous discussions: https://news.ycombinator.com/item?id=27775268 [1] Features relevant to the…

comment by jiggawatts · 2021-10-04 · in It takes a PhD to develop that

Here you go: https://github.com/cmuratori/refterm

comment by macmac · 2021-10-04 · in It takes a PhD to develop that

…feedback from a sizeable community to try and break his implementation. The code is vailable here: https://github.com/cmuratori/refterm

comment by macmac · 2021-10-04 · in It takes a PhD to develop that

…discussion around the licensing hilarious after what Casey had to put up with in the initial issue. https://github.com/cmuratori/refterm/issues/17

comment by AnIdiotOnTheNet · 2021-08-31 · in Windows Terminal Preview 1.11 Release

…GPU accelerated. Casey Muratori has said a lot about it. https://github.com/cmuratori/termbench and https://github.com/cmuratori/refterm were a result. It doesn't mean a lot in terms of quality of Windows 11, I just think it is a good…

comment by AnIdiotOnTheNet · 2021-08-31 · in Windows 11 available on October 5

…I've tried feel slow as well, though not as slow as Windows Cmd. http://danluu.com/term-latency/ https://github.com/cmuratori/refterm Personally I use xterm with bitmap fonts whenever I can, it feels sooo good. It has both crisp font…

comment by jstimpfle · 2021-07-14 · in Warp: Fast, Rust-based terminal (waiting list)

▲ 5

Refterm V2 – Reference monospace terminal renderer

story by thunderbong · 2021-07-12 · 0 comments

▲ 4

Why Windows Terminal renderer is slow

story by nreece · 2021-07-08 · 1 comment

▲ 5

On the slowness of Windows Terminal

story by Narishma · 2021-07-07 · 0 comments

…it, here's the continuation to Windows Terminal. Casey Muratori made a reference terminal renderer: https://github.com/cmuratori/refterm This uses all the constraints that the Windows terminal team cited as excuses: it uses Windows…

comment by dmitriid · 2021-07-03 · in Apple and Intel first to use TSMC 3nm